Germanwings Airbus crashes in French Alps

Family members of passengers killed in Germanwings plane crash arrive at Barcelona's El Prat airport on March 24, 2015. Lufthansa's budget carrier Germanwings confirmed its flight 4U9525 from Barcelona to Duesseldorf crashed in the French Alps. (REUTERS/Gustau Nacarino)

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A rescue helicopter from the French Securite Civile flies over the French Alps during a rescue operation after the crash of an Airbus A320, near Seyne-les-Alpes, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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French Gendarmerie Alpine rescue units gather on a field as they prepare to reach the crash site of an Airbus A320, near Seyne-les-Alpes, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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French Police and Gendarmerie Alpine rescue units gather on a field as they prepare to reach the crash site of an Airbus A320, near Seyne-les-Alpes, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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Family members of passengers feared killed in Germanwings plane crash react at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Albert Gea)

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Family members of passengers feared killed in Germanwings plane crash react at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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A police officer, left, escorts a man believed to be a family member of a passenger killed in Germanwings plane crash as he arrives at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Albert Gea)

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French Interior Minister Bernard Cazeneuve, centre, arrives by helicopter on a field next to the crash site of an Airbus A320, near Seyne-les-Alpes, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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Rescue helicopters from the French Securite Civile and the Gendarmerie are seen during a rescue operation near the crash site of an Airbus A320, near Seyne-les-Alpes, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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Family members of those killed in Germanwings plane crash arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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A police officer escorts people at Duesseldorf airport on March 24, 2015. (REUTERS/Ina Fassbender)

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French firefighters prepare to take-off in Digne-les-Bains for the crash site of an Airbus A320, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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Rescue helicopters from the French Securite Civile and the Air Force are seen in front of the French Alps during a rescue operation near to the crash site of an Airbus A320, near Seyne-les-Alpes, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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A rescue helicopter from the French Securite Civile flies over the French Alps during a rescue operation near the crash site of an Airbus A320, near Seyne-les-Alpes, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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Rescue helicopters from the French Gendarmerie and the Air Force are seen in front of the French Alps during a rescue operation next to the crash site of an Airbus A320, near Seyne-les-Alpes, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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French firefighters prepare to take-off in Digne-les-Bains for the crash site of an Airbus A320, in the French Alps, March 24, 2015. (REUTERS/Jean-Paul Pelissier)

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An emergency vehicle stands at an entrance at Duesseldorf airport on March 24, 2015. Lufthansa's budget carrier Germanwings confirmed its flight 4U9525 from Barcelona to Duesseldorf crashed in the French Alps. (REUTERS/Ina Fassbender)

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Family members of those killed in Germanwings plane crash arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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Spanish police officers escort family members of those killed in Germanwings plane crash as they arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Albert Gea)

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A family member of a passenger killed in Germanwings plane crash reacts as he arrives at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Albert Gea)

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Carsten Spohr, Lufthansa Chief Executive, arrives for a statement at the Frankfurt airport on March 24, 2015. Lufthansa's budget carrier Germanwings confirmed its flight 4U9525 from Barcelona to Duesseldorf crashed in the French Alps. (REUTERS/Kai Pfaffenbach)

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Members on the airport care team gather at Duesseldorf airport on March 24, 2015. (REUTERS/Ina Fassbender)

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People believed to be family members of those killed in Germanwings plane crash arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Albert Gea)

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People from pastoral care wait in Duesseldorf airport on March 24, 2015. (REUTERS/Ina Fassbender)

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Family members of passengers killed in Germanwings plane crash arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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Family members of passengers killed in Germanwings plane crash are escorted by a helper as they arrive at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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Family members of passengers feared killed in Germanwings plane crash react at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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Family members of passengers feared killed in Germanwings plane crash react at Barcelona's El Prat airport on March 24, 2015. (REUTERS/Gustau Nacarino)

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A police car is parked outside the Josef-Koenig-Gymnasium high school in Haltern am See, March, 24, 2015. (REUTERS/Kirsten Neumann)